RELNOTES: Modernize `async/freelist.js` from `goog.provide` to `goog.module`.
RELNOTES: Modernize `async/freelist.js` from `goog.provide` to `goog.module`.

PiperOrigin-RevId: 447792563
Change-Id: I686253ac9f1818cf07ff8bc41ef9b63c90bd661b

google/closure-library,google/closure-library,google/closure-library,google/closure-library,google/closure-library